320973818512 has 20 divisors (see below), whose sum is σ = 629758760320. Its totient is φ = 158455428768.

The previous prime is 320973818489. The next prime is 320973818579. The reversal of 320973818512 is 215818379023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126966228 + ... + 126968755.

It is an arithmetic number, because the mean of its divisors is an integer number (31487938016).

Almost surely, 2^320973818512 is an apocalyptic number.

It is an amenable number.

320973818512 is a deficient number, since it is larger than the sum of its proper divisors (308784941808).

320973818512 is a wasteful number, since it uses less digits than its factorization.

320973818512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253935070 (or 253935064 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 320973818512 in words is "three hundred twenty billion, nine hundred seventy-three million, eight hundred eighteen thousand, five hundred twelve".